Visual studio Code error

Hello guys. I try to import a file from the one I made years ago with CodeBlocks. it should multiply the first number to the power of the second number(kelimasLaipsniu). Why does it show me a window always with the the word ‘something’ ? Any help would be highly appreciated.

#include <iostream>
#include <cmath>

using namespace std;
void kelimasLaipsniu(int a,int b)
    int temp=a;
    for(int i=1;i<b;i++)

int main()


    return 0;

This might be a silly question, but did you save? The screenshot shows unsaved edits.

Yes, I did save it! Always. Im just a noob trying to figure the functions of visual code which is a mystery